https://www.mangago.me/read-manga/the_anxious_boyfriend_and_the_insecure_girlfriend/
This one is still new, but I believe it’ll be a yandere possessive ml because he’s desperate for her ,he wants her love and attention + he’s insane and obsessed
OK so here's the purest posessive one I know, my heart bleeds for this shounen ai BL fr, read it! It's so frigging cute!:
https://www.mangago.me/read-manga/the_nameless_flower/
This one is the total opposite to the one above, really brutal, possessive Yaoi BL with blood, SA, and murder just to have the MC for himself:
https://www.mangago.me/read-manga/dear_teddy_bear/
This one is also Yaoi BL hardcore, with kidnapping, SA, also yandere mode 110%. It's still ongoing tho: https://www.mangago.me/read-manga/lost_jujucat/
And this one was really good too, the ending was satisfying and it was a rollercoaster but worth it:
https://www.mangago.me/read-manga/night_of_the_hunt/

guys can anyone recommend some really good yandere bl or straight mahnwas, ive read the popular ones like dreaming freedom, love jinx, codename anastasia, roses & champagne, for your murder, etc. I need an actually unhinged posessive ml but he truly needs to love the mc (not like edge of ambiguity cause wtf even is that atp)